modelbenchmark.io

GPT-5.1 Codex (Azure)

OpenAI · gpt-5-1-codex

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Codex GPT for repository edits, code review, and practical software agents

Specification

openai listing

Context
400K
Max output
128K
Released
2025-11-13
Knowledge cutoff
2024-09-30
Retires
2026-07-23
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · openai list price

Input
$1.25
Output
$10.00
Cache read
$0.125

Batch and priority prices

US dollars per million tokens · per listing

PriceListing$/M
Priority inputazure$2.50
Priority outputazure$20.00

Quality

1 benchmark · 1 source

Composite
81st
percentile of 344 scored models
Rank
68 / 344
±0.10 sd
Evidence
1 × 1
too little evidence to place with confidence
Effort range
—
one configuration only
coding59th1/3 bench

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
SWE-Bench verified66.0medium · mini-SWE-agentSWE-bench—

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 20 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
openaivendor$1.25$10.00$0.125—400K128K2026-07-23
opencode$1.07$8.50$0.107—400K128K—
poe$1.10$9.00$0.11—400K128K—
jiekou$1.1875$9.50$0.1187—400K128K—
abacus$1.25$10.00$0.125—400K128K—
aihubmix$1.25$10.00$0.125—400K128K—
azure
$1.25
$1.375
$10.00
$11.00
$0.125
$0.1375
—
400K
272K
128K2027-05-15
azure-cognitive-services$1.25$10.00$0.125—400K128K—
edenai$1.25$10.00$0.125—272K128K—
helicone$1.25$10.00$0.125—400K128K—
impossibl$1.25$10.00$0.125—400K128K—
kilo$1.25$10.00$0.13—400K128K—
llmgateway$1.25$10.00$0.125—400K128K—
llmgateway-providers$1.25$10.00——400K272K—
nano-gpt$1.25$10.00$0.125—400K128K—
openrouter$1.25$10.00$0.13—400K128K—
orcarouter$1.25$10.00$0.125—400K128K—
vercel$1.25$10.00$0.13—400K128K—
vivgrid$1.25$10.00$0.125—400K128K—
zenmux$1.25$10.00$0.125—400K128K—

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02azureCache read$0.125
2026-09-17azureCache read$0.125
2026-09-02openaiCache read$0.125
2026-09-24openaiCache read$0.125
2026-09-02openrouterCache read$0.13
2026-09-06openrouterCache read$0.13
2026-10-10openrouterCache read$0.13
2026-09-02zenmuxCache read$0.12
2026-10-22zenmuxCache read$0.125
2026-09-02azureInput$1.25
2026-09-17azureInput$1.25
2026-09-02jiekouInput$1.125
2026-10-22jiekouInput$1.1875
2026-09-02openaiInput$1.25
2026-09-24openaiInput$1.25
2026-09-02openrouterInput$1.25
2026-09-06openrouterInput$1.25
2026-10-10openrouterInput$1.25
2026-09-02jiekouOutput$9.00
2026-10-22jiekouOutput$9.50
2026-09-02openaiOutput$10.00
2026-09-24openaiOutput$10.00
2026-09-02openrouterOutput$10.00
2026-09-06openrouterOutput$10.00
2026-10-10openrouterOutput$10.00

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